:root {
  --background: 222 33% 97%;
  --foreground: 228 24% 14%;
  --primary: 253 82% 60%;
  --secondary: 189 86% 42%;
  --muted: 223 24% 92%;
  --destructive: 0 78% 56%;
  --border: 224 20% 84%;
  --card: 0 0% 100%;

  --shadow-sm: 0 10px 24px hsla(245, 45%, 18%, 0.07);
  --shadow-md: 0 18px 44px hsla(245, 45%, 18%, 0.12);
  --shadow-lg: 0 24px 60px hsla(253, 82%, 45%, 0.22);

  --transition-fast: 140ms ease;
  --transition-smooth: 260ms cubic-bezier(0.22, 1, 0.36, 1);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

.dark {
  --background: 229 28% 10%;
  --foreground: 220 18% 94%;
  --primary: 259 86% 69%;
  --secondary: 189 88% 54%;
  --muted: 227 18% 18%;
  --destructive: 0 72% 62%;
  --border: 227 15% 24%;
  --card: 226 22% 13%;

  --shadow-sm: 0 10px 24px hsla(240, 30%, 4%, 0.28);
  --shadow-md: 0 18px 44px hsla(240, 30%, 4%, 0.36);
  --shadow-lg: 0 24px 60px hsla(259, 86%, 69%, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

button,
a,
input,
textarea {
  transition: all var(--transition-fast);
}

textarea {
  resize: vertical;
}

::selection {
  background: hsl(var(--primary) / 0.24);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}